CN113323275A - Sealed single-hole anchor for prestressed structure and tensioning system - Google Patents

Sealed single-hole anchor for prestressed structure and tensioning system Download PDF

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Publication number
CN113323275A
CN113323275A CN202110761875.3A CN202110761875A CN113323275A CN 113323275 A CN113323275 A CN 113323275A CN 202110761875 A CN202110761875 A CN 202110761875A CN 113323275 A CN113323275 A CN 113323275A
Authority
CN
China
Prior art keywords
hole
anchor
clamping piece
bottom plate
anchor cup
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110761875.3A
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Chinese (zh)
Inventor
王同华
张强
张龙刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Huasizhuang Energy Technology Co ltd
Original Assignee
Qingdao Huasizhuang Energy Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Huasizhuang Energy Technology Co ltd filed Critical Qingdao Huasizhuang Energy Technology Co ltd
Priority to CN202110761875.3A priority Critical patent/CN113323275A/en
Publication of CN113323275A publication Critical patent/CN113323275A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
    • E04B1/642—Protecting metallic construction elements against corrosion
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/121—Construction of stressing jacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a sealed single-hole anchor and a tensioning system for a prestressed structure, wherein the anchor comprises a protective cover, a clamping piece, an anchor cup and a bottom plate, the anchor cup is cylindrical, one end of the anchor cup is provided with an external thread and is connected with the protective cover provided with an internal thread, the bottom of the other end of the anchor cup is connected with the bottom plate through a bolt, through holes are formed in the anchor cup and the bottom plate, the through holes are provided with an upper section and a lower section, the upper section is close to the protective cover and is frustum-shaped, the lower section is close to the bottom plate and is cylindrical, the clamping piece is arranged on the circumference of the frustum-shaped through hole on the upper section, the clamping piece is arranged along the circumference of the frustum-shaped through hole, a clamping piece through hole is formed in the middle, a check washer is fixed on the end face of the outer end of the clamping piece exposed out of the outer end of the anchor cup, the diameters of the cylindrical through hole on the lower section of the anchor cup, the clamping piece through hole and the bottom plate through hole are equal to the diameter of the inner ring of the cylindrical through hole on the lower section of the anchor cup, The clamping piece through hole, the bottom plate through hole and the anti-loosening washer are provided with the steel strand in a penetrating mode, stability is good, and service life is long.

Description

Sealed single-hole anchor for prestressed structure and tensioning system
Technical Field
The invention belongs to the technical field of engineering construction tools, and particularly relates to a sealed single-hole anchor for a prestressed structure and a tensioning system.
Background
Engineering construction has inseparable relation now with the prestressed anchorage, all can adopt the ground tackle among a lot of constructions, but current ground tackle has the easy corrosion of clamping piece, the problem that easily drops to influence the stability ability and the life of ground tackle, current stretch-draw equipment technique is ordinary mine and bridge prestressing force stretch-draw equipment in addition, and the method implements the prestressing force at the pylon king-post top and stretches, and the unable operation of the ground tackle clamping piece of fixed steel strand wires is installed in place.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention aims to provide a sealed single-hole anchor and a tensioning system for a prestressed structure, which have the advantages of good stability, long service life and convenience in installation and operation.
The invention provides a sealed single-hole anchor for a prestressed structure, which comprises a protective cover, a clamping piece, an anchor cup and a bottom plate, wherein the anchor cup is cylindrical in shape, one end of the anchor cup is provided with an external thread, is connected with a protective cover with internal threads, the bottom of the other end is connected with a bottom plate through a bolt, through holes are arranged in the anchor cup and the bottom plate, the through holes are provided with an upper section and a lower section, the upper section is close to the protective cover, and is frustum-shaped, the lower section is close to the bottom plate and is cylindrical, the periphery of the frustum-shaped through hole of the upper section is provided with a clamping piece, the clamping pieces are arranged along the circumference of the frustum-shaped through hole, a clamping piece through hole is formed in the middle of the frustum-shaped through hole, a check washer is fixed on the end face of the anchor cup, which is exposed out of the outer end of the clamping piece, the diameters of the cylindrical through hole at the lower section of the anchor cup, the clamping piece through hole and the bottom plate through hole are equal to the diameter of the inner ring of the check washer, and a steel strand is arranged on the lower section of the anchor cup through the cylindrical through hole, the clamping piece through hole, the bottom plate through hole and the anti-loosening gasket in a penetrating way.
The protective cover is in a convex shape.
And a sealing gasket is arranged in the through hole of the bottom plate.
The anchor cup is provided with a glue injection hole.
And diamond or twill-shaped patterns are arranged outside the protective cover.
Tensioning system uses canned type haplopore ground tackle, including instrument ground tackle, hydraulic jack, jack bearing structure and hydraulic oil pump, the hydraulic jack top sets up the instrument ground tackle, and the bottom sets up canned type haplopore ground tackle, hydraulic jack installs on jack bearing structure, jack bearing structure installs the top at the pylon king post, the hydraulic oil pump passes through hydraulic oil pipe and is connected with hydraulic jack.
The sealed single-hole anchorage device and the tensioning system for the prestressed structure have the advantages of good stability and long service life, are suitable for prestressed construction of fixing steel strands by various single-hole anchorage devices, and can prevent the steel strands from rusting by arranging the protective cover; the anti-loosening washer is arranged between the protective cover and the clamping piece, when the anti-loosening washer is used as a fixed-end anchorage device, the clamping piece does not fall off in the process of tensioning the steel strand during prestress construction, the clamping piece is synchronously pushed into the anchor cup, and the steel strand is better locked; the glue injection hole is arranged, and anti-rust grease or an isolating agent can be injected to prevent the anchor cup, the clamping piece and the steel strand from being rusted; the tensioning system is applied to prestressed steel strand tensioning construction of the prestressed framework type steel pipe wind power tower, the prestressed construction efficiency is improved, the safety reliability of prestressed construction is improved, and the data reliability of the tensioning force is improved.
Drawings
FIG. 1 is a schematic overall structure of one embodiment of the present invention;
FIG. 2 is a schematic view of the overall construction of the tensioning system;
the figure is marked with:
1. a protective cover; 2. a lock washer; 3. a clip; 4. an anchor cup; 5. a base plate; 6. a bolt; 7. steel strand wires; 8. a gasket; 9. injecting glue holes; 10. an oil jack; 11. a tool anchorage; 12. a hydraulic oil pipe; 13. a hydraulic oil pump; 14. a sealed single-hole anchor; 15. a tower main column; 16. jack support structure.
Detailed Description
The present invention provides a sealed type single hole anchor and a tensioning system for a prestressed structure, which will be described in detail with reference to the accompanying drawings.
Examples
Referring to fig. 1, the closed single-hole anchor for the prestressed structure of the embodiment includes a protective cover 1, clamping pieces 3, an anchor cup 4 and a bottom plate 5, wherein the anchor cup 4 is cylindrical, one end of the anchor cup is provided with an external thread and connected with the protective cover 1 provided with an internal thread, the bottom of the other end of the anchor cup is connected with the bottom plate 5 through a bolt 6, through holes are arranged inside the anchor cup 4 and the bottom plate 5, the through holes are provided with an upper section and a lower section, the upper section is close to the protective cover and is frustum-shaped, the lower section is close to the bottom plate and is cylindrical, the clamping pieces 3 are arranged on the circumference of the upper section of the frustum-shaped through hole, the clamping piece through hole is formed in the middle of the clamping piece 3, a locking cylindrical washer 2 is fixed on the end face of the outer end of the clamping piece, the aperture of the lower section of the anchor cup 4, the clamping piece through hole and the bottom plate through hole are equal to the diameter of the inner ring of the locking washer, and the diameter of the lower section of the clamping piece through hole, the clamping piece through hole and the bottom plate through hole are equal to the diameter of the locking washer, And the steel strand 7 is arranged on the clamping piece through hole, the bottom plate through hole and the anti-loosening washer in a penetrating mode.
The safety cover 1 is in a convex shape, an internal thread is arranged inside a thick end at the bottom of the safety cover and is used for being connected with an external thread of the anchor cup 4, and a convex thin end is used for protecting the steel strand to prevent rusting.
The through hole of the bottom plate 5 is provided with a sealing gasket 8, and the sealing gasket 8 is arranged at the part of the through hole of the bottom plate close to the bottom of the anchor cup.
The anchor cup 4 is provided with a glue injection hole 9, the glue injection hole is arranged at the lower part of the anchor cup, namely, the part corresponding to the lower section of the cylindrical through hole, the two sides of the lower section of the cylindrical through hole are symmetrically arranged, and the glue injection hole 9 can be used for injecting glue, antirust grease, an isolating agent or sealing oil.
The diameter of the glue injection hole 9 is 2-5mm, and the wall thickness of the protective cover is 1-3 mm.
And a diamond or twill-shaped pattern is arranged outside the protective cover 1.
The anchor can be used as a tensioning end anchor and a fixed end anchor, and when the anchor is used as the tensioning end anchor, the thin end of the convex protective cover can be configured according to the length required by tensioning equipment, so that the steel strand is prevented from rusting.
The external threads are arranged at the lower end of the anchorage device, the corresponding internal threads are arranged on the inner side of the protective cover, the anti-loosening pad is additionally arranged between the protective cover and the clamping piece, the clamping piece does not fall off when the anchorage device is used as a fixed end anchorage device in the process of tensioning the steel strand during prestress construction, the clamping piece is synchronously pushed into the anchorage cup, and the effect of better locking the steel strand is achieved.
Through setting up bottom plate and sealed the pad, steel strand wires prestressing force construction finishes the back, can through annotating the gluey hole and annotate rust-resistant fat or isolating agent, effectively prevent ground tackle anchor cup, clamping piece, steel strand wires corrosion.
Referring to fig. 2, the tensioning system is applied to a sealed single-hole anchor 14, including a tool anchor 11, an oil jack 10, a jack support structure 16 and a hydraulic oil pump 13, the tool anchor 11 is arranged at the top of the oil jack 10, the sealed single-hole anchor 14 is arranged at the bottom of the oil jack 10, the oil jack 10 is installed on the jack support structure 16, the jack support structure 16 is installed at the top of a tower main column 15, and the hydraulic oil pump 13 is connected with the oil jack 10 through a hydraulic oil pipe 12.
The steel strands run through the tool anchorage 11, the hydraulic jack 10, the sealed single-hole anchorage 14, the jack support structure 16 and the tower main column 15.
The hydraulic oil pump is provided with a metering pressure gauge.
The tensioning system effectively combines a hydraulic oil pump, a metering pressure gauge, an oil jack and a jack support structure, thereby realizing the high-altitude tensioning of the prestressed steel strand and improving the tensioning safety and operability
The tensioning system is convenient for tensioning of the prestress system arranged in the framework type tower, the problem of difficulty in installation and operation of the prestress steel strand anchorage is effectively solved, the working efficiency of tensioning the prestress steel strands is improved, and a large amount of construction labor cost is saved.
The tensioning system is mainly used for a framework type prestressed steel pipe wind power tower, is the key for realizing the prestress of the tower, and is applied and operated as follows:
1, connecting a tensioning system with electricity: the tensioning system is provided with a three-stage distribution box independently, is effectively grounded and is connected with a power supply of the equipment according to the position of the equipment;
2, assembling the oil jack: arranging a data line, a high-pressure oil pipe, a tensioning oil cylinder, a tensioning support and an anchorage device, assembling a tensioning jack, screwing a nut of the oil pipe tightly to prevent oil leakage, and after the oil cylinder is initially installed, carrying out idle running for multiple times to evacuate air in the oil pipe and the jack, wherein the specific oil jack and related components are the prior art;
3, turning on a device power switch: turning on the power switch of the equipment upwards;
4, starting equipment registration operation: setting parameters, and inputting tension and elongation;
5, inverted top oil return: after the load holding time is finished, pressing a reset key to return oil, disassembling the tool anchorage device, and inverting the top;
6 repeating the steps 4 and 5, and automatically tensioning again until the designed tensioning force is reached.

Claims (6)

1. A canned type haplopore ground tackle for prestressed structure which characterized in that: including safety cover, clamping piece, anchor cup and bottom plate, the anchor cup appearance is cylindricly, and one end is equipped with the external screw thread, is connected with the safety cover that is equipped with the internal screw thread, and other end bottom is passed through the bolt and is connected with the bottom plate, and anchor cup and bottom plate are inside all to be equipped with the through-hole, the through-hole is equipped with upper segment and hypomere, the upper segment is close to the safety cover, and is frustum form, the hypomere is close to the bottom plate, and is cylindricly, and upper segment frustum form through-hole circumference is equipped with the clamping piece, the clamping piece is arranged along frustum form through-hole circumference, and the centre forms the clamping piece through-hole, the clamping piece outer end exposes anchor cup terminal surface and is fixed with lock washer, and the cylindric through-hole of anchor cup hypomere, clamping piece through-hole, bottom plate through-hole three's aperture is equivalent with lock washer inner circle diameter, the cylindric through-hole of anchor cup hypomere, clamping piece through-hole, bottom plate through-hole and lock washer run through install steel strand wires jointly.
2. The sealed single hole anchor for prestressed structures defined in claim 1, wherein: the protective cover is in a convex shape.
3. The sealed single hole anchor for prestressed structures defined in claim 1, wherein: and a sealing gasket is arranged in the through hole of the bottom plate.
4. The sealed single hole anchor for prestressed structures defined in claim 1, wherein: the anchor cup is provided with a glue injection hole.
5. The sealed single hole anchor for prestressed structures defined in claim 1, wherein: and diamond or twill-shaped patterns are arranged outside the protective cover.
6. A tensioning system for a sealed single-hole anchor for prestressed structures, applying any one of claims 1-5, characterized in that: including instrument ground tackle, hydraulic jack, jack bearing structure and hydraulic oil pump, the hydraulic jack top sets up the instrument ground tackle, and the bottom sets up canned type haplopore ground tackle, hydraulic jack installs on jack bearing structure, jack bearing structure installs the top at the pylon king post, the hydraulic oil pump passes through hydraulic oil pipe and is connected with hydraulic jack.
CN202110761875.3A 2021-07-06 2021-07-06 Sealed single-hole anchor for prestressed structure and tensioning system Pending CN113323275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110761875.3A CN113323275A (en) 2021-07-06 2021-07-06 Sealed single-hole anchor for prestressed structure and tensioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110761875.3A CN113323275A (en) 2021-07-06 2021-07-06 Sealed single-hole anchor for prestressed structure and tensioning system

Publications (1)

Publication Number Publication Date
CN113323275A true CN113323275A (en) 2021-08-31

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CN202110761875.3A Pending CN113323275A (en) 2021-07-06 2021-07-06 Sealed single-hole anchor for prestressed structure and tensioning system

Country Status (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101078285A (en) * 2007-06-20 2007-11-28 湖南大学 Clamping piece type anchorage used for multiple fiber reinforcement plastic bar or dragline
CN101487231A (en) * 2009-02-26 2009-07-22 江阴法尔胜住电新材料有限公司 Anchorage sealing structure
CN201885697U (en) * 2010-11-01 2011-06-29 河南红桥锚机有限公司 Automatic tension monitoring system for prestressed reinforcements
CN202298464U (en) * 2011-11-11 2012-07-04 柳州豪姆机械有限公司 Steel strand connecting anchorage for hanging cable of stay cable
CN210947423U (en) * 2019-10-11 2020-07-07 吕天杰 Anchor for fixing photovoltaic support steel cable
CN215858616U (en) * 2021-07-06 2022-02-18 青岛华斯壮能源科技有限公司 Sealed single-hole anchorage device for prestressed structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101078285A (en) * 2007-06-20 2007-11-28 湖南大学 Clamping piece type anchorage used for multiple fiber reinforcement plastic bar or dragline
CN101487231A (en) * 2009-02-26 2009-07-22 江阴法尔胜住电新材料有限公司 Anchorage sealing structure
CN201885697U (en) * 2010-11-01 2011-06-29 河南红桥锚机有限公司 Automatic tension monitoring system for prestressed reinforcements
CN202298464U (en) * 2011-11-11 2012-07-04 柳州豪姆机械有限公司 Steel strand connecting anchorage for hanging cable of stay cable
CN210947423U (en) * 2019-10-11 2020-07-07 吕天杰 Anchor for fixing photovoltaic support steel cable
CN215858616U (en) * 2021-07-06 2022-02-18 青岛华斯壮能源科技有限公司 Sealed single-hole anchorage device for prestressed structure

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